invoking a macro from a template?

[dwhall256]

In the previous step, you guys helped me [make the declareEnum() 
macro](https://forum.nim-lang.org/t/11331) that generates an enum type. Now, I 
need to generate a proc that uses the enum type for a parameter. My first 
attempt employs a template:
    
    
    template declareFieldEnum*(
      peripheralName: untyped,
      registerName: untyped,
      fieldName: untyped,
      bitOffset: static int,
      bitWidth: static int,
      values: untyped
    ) {.inject.} =
      declareEnum(`peripheralName _ registerName _ fieldName Val`):
        values
      proc `fieldName`*(
          regVal: `peripheralName _ registerName Val`,
          fieldVal: `peripheralName _ registerName _ fieldName Val`
      ): `peripheralName _ registerName Val` {.inline.} =
          discard # the impl isn't important to this example
    
    
    Run

This gives me the error: `Error: Expected a node of kind nnkAsgn, got 
nnkStmtList` which suggests a mangled depth of nesting of the `untyped` 
argument I passed. Is a template the right tool for this? I'm in the deep end 
and could use another hand. If I can get this going, I have smooth water after 
this.

The problem in isolation [is here 
(playground)](https://play.nim-lang.org/#pasty=uYjlDjCnrFHZ).